Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
  • F16C33/30—Parts of ball or roller bearings
  • F16C33/66—Special parts or details in view of lubrication
  • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
  • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C29/00—Bearings for parts moving only linearly
  • F16C29/04—Ball or roller bearings
  • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
  • F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
  • F16C29/0609—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the ends of the bearing body or carriage where the rolling elements change direction, e.g. end caps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C29/00—Bearings for parts moving only linearly
  • F16C29/04—Ball or roller bearings
  • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
  • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
  • F16C29/0652—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
  • F16C29/0654—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls
  • F16C29/0659—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls
  • F16C29/0664—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls with load directions in X-arrangement
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
  • F16C33/30—Parts of ball or roller bearings
  • F16C33/66—Special parts or details in view of lubrication
  • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
  • F16C33/6629—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements

Definitions

• the invention relates to a lubricating device for a linear roller bearing, wherein the linear roller bearing has a guide rail and a longitudinally displaceable on the guide rail carriages, which is supported on the guide rail via rolling elements, which are guided in longitudinal grooves of the guide rail along the guide rail, and wherein the lubricating device for attachment to the guide carriage and the lubrication of the longitudinal grooves and / or the rolling elements is formed with lubricant supply channels, which are adapted to supply the longitudinal grooves a lubricant and end in the region of the longitudinal grooves free outlet passages for transferring the lubricant to the longitudinal grooves.
• Such lubricating devices are used to separate or lubricate the contact zones between the running surfaces in the carriage, the loaded rolling elements and the longitudinal grooves as mating surfaces in linear roller bearings.
• conventional systems are several transfer points, such.
• As grease nipple provided for receiving the lubricants. Starting from the grease nipple, the lubricant passes through a system of channels to the rolling elements, the running surfaces or the mating surfaces.
• the published patent application DE 198 451 81 A1 describes, for example, a lubricating device for a linear rolling bearing, which comprises an oil tank, which conveys the lubricant to the raceways of the rolling bodies via so-called oil dispensers.
• the oil dispensers are made of a fibrous or porous Material formed, which touches the WälzSystemterrorismbahnen the guide rail and wetted with the lubricant.
• lubricant supply is proposed in the published patent application DE 198 285 87 A1, which also relates to a linear guide device with permanent lubrication.
• a lubricant supply hole is provided in the direction reversal passages, which ensure an endless circulation of the rolling elements, which allows an immediate supply of the rolling elements with lubricant.
• the invention is based on the object to propose a lubricating device for a linear rolling bearing, which ensures sufficient and at the same time economical lubrication.
• the lubricating device is suitable and / or designed for a linear roller bearing, wherein the linear roller bearing has a guide rail and a longitudinally displaceable on the guide rail guide carriage.
• the carriage is supported on the guide rail via rolling elements, wherein the rolling elements are preferably designed as balls or rollers.
• the rolling elements are in longitudinal grooves of the guide rails along the Füh- guided guide rail, so that the guide carriage can roll along the guide rail over the rolling elements.
• the rolling elements are guided annularly in the guide carriage, so that they can perform an endless circulation in the carriage.
• the lubricating device is designed for attachment to the carriage and at the same time for lubricating the longitudinal grooves and / or the rolling elements.
• the lubrication takes place via a liquid or viscous lubricant, such.
• a lubricating oil or a grease As a lubricating oil or a grease.
• the lubricating device has lubricant supply channels, which are adapted to supply the lubricant to the longitudinal grooves of the guide rails and end in the region of the longitudinal grooves having a free outlet passage for transferring the lubricant to the longitudinal grooves, wherein the lubricant can pass through the outlet passage unhindered.
• lubricant supply channels which are adapted to supply the lubricant to the longitudinal grooves of the guide rails and end in the region of the longitudinal grooves having a free outlet passage for transferring the lubricant to the longitudinal grooves, wherein the lubricant can pass through the outlet passage unhindered.
• no further materials are arranged in the free outlet passage.
• the lubricant supply channels are covered in their course in a coverage area of at least one absorbent Depotelement, which is formed and / or arranged to receive lubricant in the coverage area and to guide parallel to the lubricant supply channel to the longitudinal grooves, lead and / or handed over. It can be provided that each lubricant supply channel is assigned its own Depotelement, or that several or all lubricant supply channels are assigned to a common Depotelement.
• the depot element is configured to allow a flow of lubricant from the covering area to the longitudinal grooves fluidically parallel to the lubricant supply channels, but also to allow, if appropriate, a lubricant flow in the opposite direction.
• the depot element forms a lubricant-conducting connection between the covering area and the longitudinal grooves of the guide rail.
• the invention is based on the consideration, in contrast to the lubrication devices known from the state of the art, of realizing multi-path lubrication, in particular two-way lubrication.
• the lubricating device according to the invention allows a part of the lubricant to reach the longitudinal grooves, ie the surface of the rail track, via the lubricant supply channels directly. Another part of the lubricant is first stored over the coverage area in the depot or the Depotimplantation.
• the respective proportion between direct lubrication and storage is adjustable by the geometric design of the lubricant supply channels, in particular in the coverage area.
• the depot or the depot elements are also in contact with the raceways of the guide rail, it is on the one hand possible to emit lubricant stored on the raceways lubricant.
• these can be taken up by the depot elements and stored in the sense of a depot within the element (s).
• Further optional advantages of the lubricating device are that a very fine dosage of the supplied lubricant is made possible. Since the excessively supplied lubricant is bound or stored in the depot element (s), a different lubricant consumption, which depends on the load level of the respective track, is compensated for.
• the lubricant supply is ensured regardless of the installation position of the lubricating device and thus of the guide carriage via the lubricating device according to the invention, wherein at the same time the lubricant is supplied to consumption.
• the absorbent depot element is formed from a porous and / or capillary material.
• a porous and / or capillary material for example, porous synthetic resin, polymeric material, sintered material, wick material or sponge rubber can be used.
• the material of the depot elements is designed to buffer lubricant and / or time-delayed freely give.
• the material of the depot elements preferably has the property of compensating regions of different lubricant concentration by capillary effects.
• the covering area or regions adjoins a closed area of the lubricant supply channels and extends as a channel opened to the depot or the depot elements up to the free or free outlet passages.
• the lubricant supply channels can thus be roughly subdivided into two regions, wherein a first region, which is preferably connected to a lubricant reservoir, is designed as a closed channel and a second part is realized as a channel opened to the depot element (s).
• the lubricating device has two or four outlet passages, wherein preferably two outlet passages are used when the guide carriage is used via two rolling element groups and four outlet passages when the guide carriage is supported by four rolling element groups.
• non-return and / or one-way valves are arranged in the course of the lubricant supply channels. These valves prevent emptying of the lubrication passages in the area downstream of the valves when the lubricating pressure drops. This results in the advantage that when refilling the lubricating device with lubricant, the lubricant supply duct areas arranged downstream of the valves do not have to be refilled, since they remain filled by the capillary action that occurs.
• the depot elements in the longitudinal direction of the guide rail, so the front side, at least partially covered by protective plates serve to protect the Depotamine from contamination.
• the protective plates can be arranged in this way be that the respective Depotelement is partially or even completely encompassed.
• the protective plate and associated Depotelement in the edge contour are formed congruent at least in the region of the guide rail.
• the protective plates are preferably formed-at least in sections-from a material which permits or promotes the embedding of dirt particles.
• the depot elements are constructed in multiple layers in the longitudinal direction of the guide rail.
• the individual layers of Depotimplantation differ by a different absorbency.
• individual layers of Depotimplantation and protective plates in any order alternately or alternately arranged.
• a multiple layering consisting of Depotianon and protective plates is carried out, in addition to alternating arrangements and multiple layers of Depotianon or protective elements are possible.
• the material of the protective plates is designed so that lubricant can be stored.
• these are preferably separated by an additional element entirely or in some areas.
• the lubricating device be designed so that the Depotemia and / or the protective plates are arranged interchangeably.
• the lubricating device has one or more actuating devices, which are or are designed to deform the depot element so that the free cross section of the lubricant supply channels in the covering region is changed.
• the material of the Depotieri is elastically formed so that it can be partially pressed into the adjacently arranged region of the lubricant supply channels, wherein the flow cross-section is influenced.
• the adjusting device can be actuated from the outside of the lubricating device.
• the adjusting device is electrically controllable, so that the lubricant flow can be adjusted automatically.
• each lubricant supply channel and / or each longitudinal groove of the guide rail is associated with one of the actuating devices.
• an individually set amount of lubricant can be assigned, wherein the distribution is selectively controllable or controlled, for example, as a function of the load.
• the lubricating device has a rolling element deflection, which allows an endless circulation of the rolling elements in the guide carriage, wherein the WälzSystemumlenkung is preferably formed as a U-shaped ball or roller conveyor.
• windows are introduced for the transfer of lubricant to the rolling elements in the WälzSystemumlenkung.
• the windows are located at the apex, in particular in the outside vertex of the Wälz- body deflection. Through the window, it is possible that the rolling elements when passing pass at a contact point directly on the Depotelement past and thereby be wetted with lubricant.
• the windows are formed as free passages so that lubricant from the lubricant supply channels passes unhindered through the window to the rolling elements.
• lubricant can pass through the contact point of the depot element and additionally or fluidically in parallel directly through the lubricant supply channels under the depot element into the rolling element circulation. Based on the previously used nomenclature, there is a three-way lubrication.
• the or the window in the WälzSumlen- kung have the advantage that either the rolling elements are acted upon with additional lubricant or already supplied too much lubricant can be stored again in the Depotelement via the previously described contact point.
• the lubricating device is preferably designed as a yoke or a "U", wherein the free legs are dimensioned for embracing the guide rail
• the lubricating device is preferably formed in one piece and in particular comprises the rolling element deflection and is placed on the front side of the guide carriage and z
• the open areas of the lubricant supply channels are preferably arranged on the front side, in particular on the free end side of the lubricating device.
• the lubricant supply channels in the coverage area have a widening, so that with the size of the widening the lubricant transfer geometrically is adjustable.
• Figure 1 is a schematic exploded view in three-dimensional
• Figure 2 shows a modified embodiment of the lubricating device in
• Figure 1 also in a schematic exploded view in three-dimensional view from the back;
• FIG. 3 shows a detail in FIG. 2 in a three-dimensional representation.
• a lubricating device 1 shows a schematic exploded view in three-dimensional representation of a lubricating device 1, which comprises a housing 2, which is fastened by means of fastening devices, in this case clips 3 to a guide carriage, not shown, of a linear roller bearing.
• the housing 2 is integrally formed and U- or yoke-shaped with two free legs 4, 5 and a bridge 6, which connects the two legs 4 and 5 realized.
• the clearance formed by legs 4 and 5 and bridge 6 is dimensioned so that a guide rail, not shown, is at least partially encompassed.
• the housing 2 has a connecting thread 7 for lubricant supply lines, which are designed, for example, as lubricating nipples. Starting from the connecting thread 7, the lubricant is fed into an optional storage tank in the bridge 6 of the housing 2.
• the lubricant flow is split into two closed lubrication divided material supply channel sections 8a and 8b, which are each end closed with a one-way or check valve 9a and 9b.
• the SchmierstoffzuGermankanäle are formed as frontally open grooves 10 a and 10 b, which are initially parallel to the longitudinal extension of the legs 4 and 5 and finally in a round, also frontally open covering area 11 a or 11 b open.
• two groove-like sections each also open, which are also open at the end, and are open at the ends to the interior formed by legs 4 and 5 and bridge 6.
• a Depotelement 12 a and b is provided for each leg 4 and 5, which is formed as a flat, plate-like component.
• the Depotieri 12 a and b are each made of a material which is absorbent and has the property to compensate for areas of different lubricant concentration within the Depotieri 12 a and b by capillary effects.
• the contour of the depot elements 12 a and / or b is adapted to the housing 2, so that they completely cover the groove-like and frontally open areas of the lubricant supply channels.
• the Depot implant 12 a and b each have two triangular in cross-section lugs 13, which are dimensioned such that they engage in the guide grooves of the guide rail, not shown, and are in direct contact with the rail track.
• lubricant is transmitted via the groove-like, open-sided lubricant supply channels via the end-side window directly to the rail tracks of the track, or parallel to it, first of the groove-like, frontally open lubricant supply channels to the Depotieri 12th a, b is transferred in these due to the capillary action to the lugs 13 and is applied by the lugs 13 on the surface of the railroad track. There is thus an effective two-way lubrication.
• the degree of lubrication Substance transfer from the lubricant supply channels to the Depotettin is determined by the geometric design of the feed channels and in particular the coverage areas 11 a and b.
• protection plates 14 a, b are provided, which are also plate-shaped and of the contour substantially congruent with the Depotianon 12 a, 12 b are realized.
• the material of the protective plates 14 a, b dirt particles binding and / or also designed to be absorbent, so that the protective plates 14 a, b take up lubricant and can optionally deliver time-delayed again.
• the housing 2 is covered by a plate 15 and optionally sealed liquid-tight. Of course, 2 further seals are arranged in the housing so as not to allow the lubricant to escape uncontrollably.
• Figure 2 shows an exploded view in three-dimensional representation of a lubricating device 1 of a second embodiment of the invention, this time from the opposite side, wherein the side facing away in the representation of Figure 2 side can take the same structure as the lubricating device 1 in Figure 1.
• the rear side of the housing 2 shows four deflection regions 16 of a rolling element circulation, which serve to deflect the rolling elements in the ball circulation unit of the guide carriage in a known manner.
• the deflection regions 16 are integrally connected to the housing 2.
• a window 17 is introduced, which contains a lubricant Tende connection to the lubricant supply channels and / or to the demepotele- ments 12 a, b and / or the coverage areas 11 a, b creates and realized in this way a three-way lubrication.
• the windows 17 it is possible to carry out both a lubricant supply and a lubricant discharge in the deflection regions 16.
• too much lubricant supplied to the rolling elements is stored in the depot elements 12a, b via the covering area 11a or b in order to deliver it at a later time.
• FIG. 3 shows a detailed detail in FIG. 2 of the housing 2 in the region of the right leg 4, wherein the deflection regions 16 and the windows 17 formed therein are again clearly visible. From the illustration it can also be seen that the molded-in windows 17 have an elongated shape.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bearings For Parts Moving Linearly (AREA)
• Rolling Contact Bearings (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=39691115

Family Applications (1)

Country Status (8)

Families Citing this family (14)

Family Cites Families (32)

• 2007
  • 2007-03-23 DE DE102007013945A patent/DE102007013945A1/de not_active Withdrawn
• 2008
  • 2008-03-19 CN CN2008800095381A patent/CN101641527B/zh not_active Expired - Fee Related
  • 2008-03-19 EP EP08718001A patent/EP2140156B1/fr active Active
  • 2008-03-19 AT AT08718001T patent/ATE534833T1/de active
  • 2008-03-19 WO PCT/EP2008/053274 patent/WO2008116805A2/fr active Application Filing
  • 2008-03-19 JP JP2010500221A patent/JP5453239B2/ja not_active Expired - Fee Related
  • 2008-03-19 ES ES08718001T patent/ES2374589T3/es active Active
  • 2008-03-19 US US12/532,482 patent/US8167492B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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